Airtac PB Pen-type Cylinder PB12X5U
The AirTAC Airtac PB Pen-type Cylinder PB12X5U is a double-acting pen-size (mini) air cylinder with a Ø12mm bore and 5mm stroke. Its slim round barrel and back cover are stainless steel, the M5×0.8 ports keep plumbing compact, and the fast, low-friction piston suits high-cycle small-part handling.
- BoreØ12 mm
- Stroke5 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM10×1.0
- CushionElastic bumper (both ends)
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac PB Pen-type Cylinder PB12X5U
The AirTAC PB12X5U is a JIS pen-size double-acting single-rod mini cylinder engineered for very short stroke clamping and ejection tasks. It generates 56.5 N of push force and 46.7 N of pull force at 0.5 MPa, operating through an M5x0.8 port. The U suffix denotes a 90-degree side air inlet, enabling flat plumbing in confined spaces. Its SUS304 stainless steel barrel and piston rod provide reliable durability in damp or mildly corrosive environments.
This 12 mm bore unit travels just 5 mm and relies on a fixed TPU bumper at each end to decelerate the piston near stroke limits. Because the bumper is not adjustable, metering out the exhaust or adding an external shock absorber is recommended when moving heavier tooling masses at higher speeds. The Ø5 mm piston rod features an M10x1.0 rod-end thread for secure load coupling.
Airtac PB Pen-type Cylinder PB12X5U Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB12X5U |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø12 mm |
| Rod diameter | Ø5 mm |
| Stroke | 5 mm |
| Acting type | Double acting |
| Port size | M5×0.8 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 0.7 MPa |
| Proof pressure | 1.2 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 50 – 800 mm/s |
| Cushion | Elastic bumper (both ends) |
| Max standard stroke | Up to 300 mm |
Specifications follow the official AirTAC PB pen-size datasheet. Piston rod and barrel are stainless steel. Confirm bore, stroke and back-cover option against the product label before installation.
Theoretical Output Force (Ø12mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 56.5 N | 46.7 N |
| 0.7 MPa (max) | 79.1 N | 65.4 N |
Values are taken from the AirTAC PB thrust table. Because pull acts on the rod-side annular area, pull force is always lower than push. Actual usable force is reduced by friction — size with a margin.
Model Code: Airtac PB Pen-type Cylinder PB12X5U
| PB | JIS pen-size double-acting mini-cylinder series. |
|---|---|
| 12 | Bore size in mm. |
| ×5 | Stroke length in mm. |
| S | Built-in magnet for magnetic-switch position sensing (omit = no magnet). |
| CB / U / R | Back cover: CB double clevis, U 90° side inlet, R axial inlet (bore-dependent). |
Mounting accessories: LB, FA, CJ. Related PB-family variants: PSB (single-acting push), PTB (single-acting pull), PBD (double rod), PBJ (adjustable stroke), PBR (front-mount).
Where the Airtac PB Pen-type Cylinder PB12X5U Is Used
PCB Edge Clamping
Secures delicate circuit boards during routing or inspection with a 5 mm travel, using the 90-degree side inlet to keep pneumatic lines flush against the machine frame.
Film Seal Jaw Actuation
Drives a short-stroke sealing jaw on a vertical form-fill machine, where the 56.5 N push force creates a tight crimp on polyethylene packaging materials.
Small Part Ejection
Ejects stamped micro-components from a die set, leveraging the SUS304 stainless build to withstand coolant mist and shop floor humidity.
Is the Airtac PB Pen-type Cylinder PB12X5U the Right Cylinder?
If your application requires slightly less force, the neighbouring Ø10 bore provides 39.3 N of push, while stepping up to the Ø16 bore yields 100.5 N for heavier demands.
Note that a standard PB body does not hold its position if air pressure drops or the valve is centred; the piston will drift, so an external stop or rod lock is necessary for fail-safe holding. To order, confirm the 12 mm bore, 5 mm stroke, M5x0.8 porting, lack of a sensor magnet, and the U-type 90-degree side inlet back cover.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Slim pen body vs. a standard round cylinder
- ✓ Back cover: CB / U / R inlet direction
- ✓ Magnet (S) for sensors?
- ✓ Mounting: LB / FA / CJ or front thread
- ✓ Keep the load coaxial — avoid side load
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 0.7 MPa operating pressure.
- check Keep the load coaxial; avoid side load on the thin rod.
- check Do not dismantle the front or back cover.
- check Fit dust caps to ports during long-term storage.
- check Installation by qualified personnel per AirTAC docs.
Airtac PB Pen-type Cylinder PB12X5U FAQ
At 0.5 MPa, this 12 mm bore cylinder provides 56.5 N of push and 46.7 N of pull. At the maximum operating pressure of 0.7 MPa, the push increases to 79.1 N and the pull to 65.4 N. The operating pressure range is 0.15-0.7 MPa, with a speed range of 50-800 mm/s.
The U suffix indicates a 90-degree perpendicular side air inlet for flat plumbing in tight spaces. Instead of an adjustable air cushion, it uses a fixed TPU bumper at each end that only decelerates the last few millimeters of travel. For high-speed or heavy tooling, you should meter-out the exhaust or add an external shock absorber.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
Related AirTAC PB Pen-Size Cylinders
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